Home / 83,412.75-115,109.60-45,688.35

Finding the Fourth Proportional to 83,412.75, 115,109.60 and 45,688.35

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Solution

The fourth proportional to 83,412.75, 115,109.60 and 45,688.35 is: 63,049.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,412.75 : 115,109.60 = 45,688.35 : x
  2. Step 2: Convert to fraction form
    83,412.75/115,109.60 = 45,688.35/x
  3. Step 3: Cross multiply
    83,412.75x = 115,109.60 × 45,688.35
  4. Step 4: Simplify right side
    83,412.75x = 5,259,167,693.16
  5. Step 5: Solve for x
    x = 5,259,167,693.16/83,412.75
  6. Step 6: Final answer
    x = 63,049.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.